Gurobi 5.0.1 (linux64) logging started Wed Apr 24 05:43:13 2013 Optimize a model with 80278 rows, 79388 columns and 317018 nonzeros Presolve removed 89 rows and 0 columns Presolve time: 0.38s Presolved: 80189 rows, 79388 columns, 316929 nonzeros Variable types: 79299 continuous, 89 integer (89 binary) Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 8258 7.3653219e+04 6.452083e+04 0.000000e+00 5s 10126 7.4236936e+04 0.000000e+00 0.000000e+00 10s Root relaxation: objective 7.423694e+04, 10126 iterations, 9.86 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 74236.9363 0 57 - 74236.9363 - - 10s H 0 0 119829.00000 74236.9363 38.0% - 16s H 0 0 101117.00000 74236.9363 26.6% - 51s 0 0 87546.7289 0 28 101117.000 87546.7289 13.4% - 70s 0 0 96300.1570 0 10 101117.000 96300.1570 4.76% - 80s H 0 0 100704.00000 96300.1570 4.37% - 81s 0 0 97601.1855 0 5 100704.000 97601.1855 3.08% - 82s 0 0 97657.9762 0 2 100704.000 97657.9762 3.02% - 83s H 0 0 100354.00000 97657.9762 2.69% - 83s H 0 0 98574.000000 97657.9762 0.93% - 83s 0 2 97657.9860 0 2 98574.0000 97657.9860 0.93% - 85s H 3 2 98568.628892 97755.4461 0.82% 277 86s H 5 3 98473.500000 97863.3108 0.62% 488 87s 9 7 98085.5172 7 2 98473.5000 97863.3108 0.62% 559 90s H 13 5 98206.467742 97863.3108 0.35% 408 90s * 15 5 13 98142.000000 97863.3108 0.28% 370 91s H 21 1 98091.780000 98003.0713 0.09% 353 92s * 25 3 8 98056.000000 98008.3469 0.05% 312 93s Cutting planes: Implied bound: 87 Explored 28 nodes (31952 simplex iterations) in 93.15 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 9.805600000000e+04, best bound 9.805600000000e+04, gap 0.0%